.page-articles {
  --art-ink-strong: color-mix(in srgb, var(--color-ink) 68%, #ffffff);
}

/* ---------- 首屏 ---------- */
.page-articles .art-hero {
  padding-block: var(--space-6) var(--section-y);
}

.page-articles .art-hero__inner {
  display: grid;
  gap: var(--space-6);
}

.page-articles .art-hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-articles .art-hero .breadcrumb {
  margin-bottom: var(--space-4);
}

.page-articles .art-hero__eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-articles .art-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.98;
  letter-spacing: var(--tracking-heading);
  color: var(--art-ink-strong);
}

.page-articles .art-hero__lede {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-articles .art-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-articles .art-hero__tags > li {
  list-style: none;
}

.page-articles .art-hero__figures {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  margin: var(--space-6) 0 var(--space-4);
}

.page-articles .art-hero__figures .stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-articles .art-hero__figures .stat__value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--art-ink-strong);
}

.page-articles .art-hero__figures .stat__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-articles .art-hero__visual {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.page-articles .art-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}

/* ---------- 目录区抬头 ---------- */
.page-articles .art-catalog__head {
  display: grid;
  gap: var(--space-4);
}

.page-articles .art-catalog__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--art-ink-strong);
}

.page-articles .art-catalog__note {
  max-width: 52ch;
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles .art-catalog__figure {
  margin: 0;
}

.page-articles .art-catalog__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-articles .art-catalog__figure figcaption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 过滤条 ---------- */
.page-articles .art-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin-block: var(--space-6) var(--space-4);
}

.page-articles .art-filter__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-articles .art-filter__hint {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 目录网格 ---------- */
.page-articles .art-catalog__grid {
  display: grid;
  gap: var(--space-3);
}

/* ---------- 目录卡片 ---------- */
.page-articles .art-card {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  transition: background 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.page-articles .art-card:hover,
.page-articles .art-card:focus-within {
  background: var(--color-surface-deep);
  box-shadow: var(--shadow-1);
  transform: translateY(-2px);
}

.page-articles .art-card__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3);
  cursor: pointer;
}

.page-articles .art-card__head::-webkit-details-marker {
  display: none;
}

.page-articles .art-card__head::marker {
  content: "";
}

.page-articles .art-card__head:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-articles .art-card__no {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  line-height: 1.1;
  color: var(--color-ink-muted);
  transition: color 150ms ease;
}

.page-articles .art-card:hover .art-card__no,
.page-articles .art-card[open] .art-card__no {
  color: var(--color-primary);
}

.page-articles .art-card:focus-within .art-card__no {
  color: var(--color-focus);
}

.page-articles .art-card__toggle::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1.1;
  color: var(--color-ink-muted);
}

.page-articles .art-card[open] .art-card__toggle::before {
  content: "–";
  color: var(--color-primary);
}

.page-articles .art-card__main {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.page-articles .art-card__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.4;
  color: var(--art-ink-strong);
}

.page-articles .art-card__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-articles .art-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-articles .art-card__time,
.page-articles .art-card__state {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-articles .art-card__fields {
  padding: 0 var(--space-3) var(--space-3);
}

.page-articles .art-fields {
  margin: 0;
  display: grid;
  gap: var(--space-1);
}

.page-articles .art-fields__row {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: var(--space-2);
  align-items: baseline;
}

.page-articles .art-fields dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-articles .art-fields dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-articles .art-fields dd a {
  color: var(--color-primary);
}

/* ---------- 中段插图 ---------- */
.page-articles .art-interlude {
  grid-column: 1 / -1;
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding-block: var(--space-4);
}

.page-articles .art-interlude img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-articles .art-interlude__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-articles .art-interlude__mark {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.page-articles .art-interlude__text strong {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--art-ink-strong);
}

.page-articles .art-interlude__body {
  max-width: 46ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 子栏目条带 ---------- */
.page-articles .art-popular__band {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  color: inherit;
  text-decoration: none;
  transition: background 150ms ease, box-shadow 150ms ease;
}

.page-articles .art-popular__band:hover,
.page-articles .art-popular__band:focus-visible {
  background: var(--color-surface-deep);
  box-shadow: var(--shadow-1);
}

.page-articles .art-popular__band:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-articles .art-popular__figure {
  margin: 0;
}

.page-articles .art-popular__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 5;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-articles .art-popular__text {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-articles .art-popular__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.page-articles .art-popular__title {
  margin: var(--space-1) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--art-ink-strong);
}

.page-articles .art-popular__desc {
  max-width: 48ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles .art-popular__more {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

/* ---------- 更新节奏 ---------- */
.page-articles .art-pace__inner {
  display: grid;
  gap: var(--space-6);
}

.page-articles .art-pace__title {
  margin: var(--space-2) 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--art-ink-strong);
}

.page-articles .art-pace__lede {
  max-width: var(--measure);
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-articles .art-pace__list {
  display: grid;
  gap: var(--space-3);
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
}

.page-articles .art-pace__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: baseline;
}

.page-articles .art-pace__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 2px var(--space-1);
  white-space: nowrap;
}

.page-articles .art-pace__text {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles .art-pace__link {
  margin: 0;
  font-size: var(--text-base);
}

.page-articles .art-pace__link a {
  color: var(--color-primary);
}

.page-articles .art-pace__aside {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles .art-pace__aside-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-articles .art-pace__aside-body {
  margin: 0;
}

.page-articles .art-pace__aside-body a {
  color: var(--color-primary);
}

/* ---------- 焦点可见性 ---------- */
.page-articles a:focus-visible,
.page-articles button:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 平板以上 ---------- */
@media (min-width: 860px) {
  .page-articles .art-catalog__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4) var(--gutter);
    align-items: start;
  }

  .page-articles .art-interlude {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: var(--space-6);
    align-items: center;
    padding-block: var(--space-6);
  }

  .page-articles .art-popular__band {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-articles .art-catalog__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: end;
  }

  .page-articles .art-pace__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

/* ---------- 桌面宽屏 ---------- */
@media (min-width: 1024px) {
  .page-articles .art-hero {
    padding-block: var(--section-y-lg) var(--section-y);
  }

  .page-articles .art-hero__inner {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    align-items: start;
  }

  .page-articles .art-hero__copy {
    grid-column: 1 / span 8;
  }

  .page-articles .art-hero__visual {
    grid-column: 10 / span 3;
    margin-top: calc(var(--space-6) * -1);
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-articles .art-card,
  .page-articles .art-popular__band,
  .page-articles .art-card__no {
    transition: none;
  }

  .page-articles .art-card:hover,
  .page-articles .art-card:focus-within {
    transform: none;
  }
}